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51 lines
1.0 KiB
Plaintext
51 lines
1.0 KiB
Plaintext
; Interface to call Physical XIOS
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; From a process not in the O.S.
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; code reentrant, separate data areas per process
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; used by VOUT and PIN RSPs
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name pxios
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cgroup group code
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dgroup group dats
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assume cs:cgroup
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assume ds:dgroup
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dats segment public 'DATA'
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extrn rsplink:word ;segment of SYSDAT
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extrn udaseg:word ;UDA must be in ES for XIOS call
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extrn u_retseg:word, u_wrkseg:word, u_insys:byte
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dats ends
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code segment public 'CODE'
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public pxios1, pxios2, pxios3, pxios4
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xiosmod equ 28h
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p_uda equ 10h
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rlr equ 68h
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pxios2 equ pxios1
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pxios3 equ pxios1
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pxios4 equ pxios1
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pxios1 proc
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push bp
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mov bp,sp
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mov ax,[bp+8] ;set up registers
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mov cx,[bp+6]
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mov dx,[bp+4]
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push ds
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mov ds,rsplink ;SYSDAT
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mov si,ds:word ptr rlr ;ready list root
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mov es,[p_uda+si] ;UDA
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call ds:dword ptr [xiosmod]
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pop ds
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pop bp
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ret 6
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pxios1 endp
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code ends
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end
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